Dyfyniad APA

(2009). Biology: Concepts & connections. San Francisco: Pearson/Benjamin Cummings.

Dyfyniad Arddull Chicago

Biology: Concepts & Connections. San Francisco: Pearson/Benjamin Cummings, 2009.

Dyfyniad MLA

Biology: Concepts & Connections. San Francisco: Pearson/Benjamin Cummings, 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.